Figure 4.
An example of recovery from mild (black circles) and severe (white circles) water stress in rewatered plants of L. franklinii. The mildly stressed plant shows a minimal reduction of Kplant and is able to rapidly recover leaf hydration and gas exchange. By contrast the severely stressed plant experiences profound depression of Kplant that recovers slowly, thus limiting gas-exchange recovery, which has a t1/2 of 6.5 d. Although Ψleaf recovers relatively quickly in both plants, it remains limiting during recovery of the severely stressed plant, thus preventing stomatal reopening.